The cause of sebaceous cysts is clear: they are caused by the blockage of the sebaceous gland ducts, which do not allow the secretions to be discharged in a timely manner. Sebaceous cysts, also known as comedones, are cysts formed when sebum secreted by the sebaceous glands cannot be normally discharged from the follicular orifices and collects in the glands. Risks for development mainly include skin impurities, trauma, puberty, and infection. When cysts are small, there are usually no conscious symptoms. As the cysts increase in size, they may elevate above the surface of the skin, causing pressure on local tissues leading to pain. If the complication of infection, resulting in local redness, swelling, pus, at this time you need to go to the hospital oral anti-inflammatory drugs, topical anti-inflammatory drug treatment, infection control can choose surgical excision to completely cure the disease. The symptoms of sebaceous cysts, it is recommended not to take care of themselves, you can go to the hospital general surgery, dermatology. The key to the treatment of the disease lies in the complete surgical removal of the cysts to maintain the aesthetic appearance as much as possible.